鞍斑蝴蝶鱼【月光蝶】Chaetodon ephippium ān bān hú dié yú

鞍斑蝴蝶鱼,月光蝶实为鞭蝴蝶鱼（Chaetodon ephippium）的俗称，也称黑腰蝶。属观赏鱼类。体卵圆形，长15-20cm，头部呈三角形状，吻尖长，向前突出，体色金黄色，腹部有数条浅蓝色纵条纹，体后上部有一卵形蓝黑色大斑，占体1/4，斑下缘为宽白边，后缘橘红色。分布于我国西沙群岛、南沙群岛、台湾海域、热带印度洋和太平洋热带海区。

百度翻译提供：

Saddle spot butterfly fish and moonlight butterfly are actually the common name of Chaetodon epippium, also known as black waist butterfly. It is an ornamental fish. The body is oval, 15-20cm long, the head is triangular, the tip of the kiss is long, protruding forward, the body color is golden yellow, there are several light blue longitudinal stripes on the abdomen, there is a large oval blue black spot on the upper part of the back of the body, accounting for 1 / 4 of the body, the lower edge of the spot is wide white edge, and the rear edge is orange red. Distributed in China's Paracel Islands, Spratly Islands, Taiwan sea, tropical India ocean and Pacific tropical sea area.